Darning device



2 Sheets-Shxaet 1 ATTO R N EYS f o f #an W. W. KLIMA DARNING DEVICEFiled Aug. 22, 1938 May4 9, 1939.

ay 9, 1939. W W. KLIMA v 2,157,79

' DARNING DEVICE Filed Aug. 22, 1938 2 Sheecs-SheefI 2 Hllilugg "iriaPatented May 9, 1939 UNITED STATES PATENT OFFICE 3 Claims.

This invention relates to darning devices and has for an object toprovide a device of this character for darning holes in socks and othergarments and material in quicker time and with less manual effort thanconventional devices of this character.

A further object is to provide a darning device having plates providedwith interdigitating studs and levers for holding the plates spacedduring application of the darning thread in one direction prior torelease of said levers so that the plates may be forced together inclamping engagement on the material to form loops in the threadspreparatory to applying the binding thread or yarn, the resultant wovenpatch resembling an ornamental basket weave.

A further object is to provide a darning device of this character whichwill be formed of a few strong simple and durable parts, which will beinexpensive to manufacture, and which will not easily get out of order.

With the above and other objects in view the invention consists ofcertain novel detalls of construction and combinations of partshereinafter fully described and claimed, it being understood thatvarious modifications may be resorted to within the scope of theappended claims without departing from the spirit or sacrificing any ofthe advantages of the invention.

In the accompanying drawings forming part of this specification,

Figure 1 is a longitudinal sectional view of the device with parts inelevation, showing the goods and threads or yarns passed through loopsformed in the goods.

Figure 2 is a bottom plan view of the topplate of the device and showingin dotted lines the studs of the bottom plate interleaved between thestuds of the top plate.

Figure 3 is a top plan view of the bottom plate of the device. y

Figure 4 is a fragmentary cross sectional view taken on the line 4-4 ofFigure 1.

Figure 5 is a fragmentary end elevation of the device showing one of thelevers in position to hold the plates slightly spaced.

Figure 6 is a detail end elevation of the device showing the spacinglever in released position to permit the plates to be forced closelytogether.

Figure 7 is a fragmentary longitudinal sectional view with the platesforced tightly together to permit insertion of the secondly appliedthreads.

Figure 8 is a detail cross sectional view taken on the line 8 8 ofFigure '7 and showing both sets of the threads in the goods of thefinished product.

Referring now to the drawings in which like characters of referencedesignate similar parts in the various views, the darning device isshown 5 to comprise upper and lower plates I0 and II each havingrespective studs I2 and I3 arranged in rows transversely andlongitudinally of the plates with the studs of both plates staggeredrelatively to each other so that the plates may be superposed with thestuds of one plate interdigitating and spaced from the studs of theopposite plate so that the material I4 to be darned will be deformed toprovide loops alternate ones of which extend in opposite directions fromthe l5 normal plane of the material.

The studs of the upper plate are provided at the tips with shallownotches I5 and with deep notches I6 intersecting the shallow notches ata right angle. The shallow notches of the studs 20 of each row arealigned transversely of the plate and thedeep notches of the studs ofeach row are aligned longitudinally of the plate.

Likewise the studs I3 of the lower plate I4 are provided with shallownotches I'I and with deep notches I8, the shallow notches of the studsof each row being aligned transversely of the plate while the deepnotches of each row of studs are aligned longitudinally of the plate.

The bottom plate I I is provided all around the edge thereof with agroove I9 into which the material I4 is inserted and clamped through themedium of a helical endless spring 20. This yielding clamping of thegoods permits the goods to be drawn underneath the spring as the studs 5of the top plate deform the goods over the studs of the bottom plate toprovide alternate elevations and depressions as shown in Figure 1.

A flange 2I depends from the upper plate II] and the free edge of theflange is substantially in the plane of the free ends of the studs I2. Alever 22 is pivotally mounted intermediate its ends on each end of theflange through the medium of a pivot pin 23. The lever is equipped atone end with a grip 24 and at the opposite end with a 45 cam 25. Whenthe goods or material to be darned is initially laid over the studs I3of the bottom plate the top plate is then applied to the fabric with thelevers 22 extending upright so that the cams 25 thereof clamp thematerial to the bottom plate and space the studs of the top plate fromthe bottom plate so that shallow loops and elevations are formed in thegoods or material as best shown in Figure 1. In this position of theparts an initial thread or yarn 26 may be 55 threaded through theregistering shallow grooves of the studs I2 and I3 of both plates, therebeing openings 2I in the sides of the flange 2| to permit the needlebeing threaded through the shallow grooves of both sets of studs.

Each lever 22 is provided with an annular series of struck out socketmembers 28 which spring over projections 29 carried by the flange 2 I.'Ihese inter-engaging projections and grooves lock the levers invertical operative position or in horizontal released position whichlatter position is best shown in Figure 6. In the released position ofthe levers 22 the plates may be pressed closely together to align thedeep grooves in both sets of studs I2, and I3 with each other s0 that ayarn or thread 30, best shown in Figures .i

'l and 8 may be threaded through these grooves and through the alternatedeep depressions and elevations produced in the goods or material as theplates are moved closely together. There are openings 3l formed in theends of the flange 2l to permit the darning needle and thread to betrained through the deep slots oi? the studs, to intersect the initiallyapplied threads 26 at right angles. When both sets of threads have beenapplied the top plate may be removed and the woven goods or materialdisengaged from the lower plate by removing the resilient clamp spring20. When the material is stretc-hed out it will be found that the wovenspots present the appearance of an ornamental basketweave.

Since the operation of the parts has been described as the descriptionof the parts progresed it is thought that the invention will be fullyunderstood without further explanation.

What is claimed is:

1. Darning apparatus comprising a pair of plates having interdigitatingstuds, the studs being provided with crossed grooves of respectivelydifferent depths for'the passage of the darning needle and threadtherethrough, a flange on one of the plates, levers on the ange having`cam ends adapted to engage the other plate and space the plates so thatall of the grooves of one depth will be aligned, the levers beingadapted to be swung back upon the ange to permit the plates being movedcloser together so that all the studs of another depth will be aligned,and means for yieldably holding the work to be patched on one of theplates.

2. Darning apparatus comprising a pair of plates having interdigitatingstuds, the studs being provided with crossed grooves of respectivelydifferent depths for the passage of the darning needle and threadtherethrough, a flange on one ofthe plates, levers on the flange havingcam ends adapted to engage the other plate and space the plates so thatall of the grooves of one depth will be aligned, the levers beingadapted to be swung back upon the flange to permit the plates beingmoved closer together so that all the studs of another depth will bealigned, one of the plates having a groove, and an endless helicalspring seated in said groove for yieldably clamping the work to bedarned in said groove.

3. A darning apparatus comprising a pair of plates, studs on the platesadapted to interdigitate when the plates are superposed one upon theother, there being grooves perpendicular to each other in the end ofeach stud and of respectively different depths, a iiange extending fromone of the plates, levers carried by the flange andv movable intoengagement with the other plate for spacing the plates apart so that allof the grooves of one specic depth align', said levers being movable toreleased position to-permit said plates being moved closerltogether sothat all of the slots of the other specific depth align, interttingmeans between the levers and the llange for yieldably holding the leversin operative or in released position, there being a groove in theperipheral edge of one of the plates, and an end-z less helical springfor yieldably clamping the Work to be darned in said groove.

WILLIAM W. KLIIWA.'A

